Shoe bottom treating device



I y 25, 1933- J. s. KAMBORIAN ,9 ,0

snow sow rom TREATING DEVICE i Fild Sept. 26, 1930 Patented July 25, 1933 PATENT OFFICE UNITED STATES JACOB S. KAMBORIAN', OFIWATERTOWN,

MASSACHUSETTS, ASSIGNOR TO NORTHEBN SETTS SHOE BOTTOM TREATING DEVICE Application filed September 26, 1930. Serial No. 484,553.

My present invention relates to devices for treating thebottoms of'shoes, and is particularly applicable to McKay shoes, and more particularly to McKay shoes when made with cementing processes and without the usev of tacks, although said device is also applicable to welt shoes.

When manufacturing shoes by a cementing process, where tacks are not used, and particularly at the toe portion, the shoe is placed in a bed lasting machine and the toe portions of the upper materials are wiped over by the lasting Wipers. This operation is repeated a few times, but as soon as stopped, the upper materials have a tendency to assume their normal position before the cement has set. not of themselves capable of exerting pressure in such a way asto the upper materials at this point, with the result that when the outsoleisapplied, there aware that it has to provide means adjunctive to the unless that portionorepart or toe of the shoe to smooth will be lumps or ridges between the outsole and insole at the i of the shoe bottom "1s flattened by a separate operationafterremoved from the lasting machine. I am been proposed to cement the edge of the upper to the insole and to hold it while the cement is set by devices having insole penetrating prongs, nails, or

the like, but such devices so far as isknown to me have never proven commercially suc-' do not furnish the requisite are difiicult to rethe shoe parts; the use cessful since they flattening pressure, they of special lasts. My present adapted to culties above mentioned, and in a'preferred embodiment comprises means adapted to pull over and wipe the toe :portions of the upper materials after they are first wiped by the'shoe lasting wipers of a bed lasting machine.

Primarily the object of the inventioli) d e lasting wipers which will exert sufficient ressure upon the upper materials at "all;

Also,the lasting wipers are: r

varying lengths of shoes.;f.and is also adlevel and smooth toe portion of the shoe,

invention is intended and eliminate and obviate the difiiprises a substantially level the same so as to eliminate Wrinkles, corrugations or the like while holding them in this position until the cement has set sufliciently to retainthem permanently.

In a preferred embodiment of the inven tion, the apparatus is so devisedv-as-tocefiect a sliding action over the toe towardthe heel, and thereafter to exert a clamping action under desired pressure for a predetermined interval of time, until the cement has set.

materials will besecurely held in position by the cement, and all wrinkles, ridges or other objectionable protuberances will be smoothly ironed out.

My present novel device is. adjustable for toes, and if so adjustable may beispringcom trolled. v The aboveandother objectsof the invention, details of construction, combinations of parts and advantages-will be hereinafter more fully pointed out, described and claimed 1 Referring to thedrawing, illustrating a preferred embodiment of the present invention, 7

Fig. device in operative position;

Fig. 2 is a plan sectional view on the line 2-2 of Fig. 1;

Fig. 3 is a sectlonal view on the line 3-3 of Fig. 1; I V Fig. 4 is a cross-sectional view on the line HofFigl; Fig. 5 is a bottom plan viewof the pivoted clamping plate; and I Fig. 6 is across-sectional view on the. line 6-6 of Fig. 5. j l

Referring now to the drawing for a particular description of one desirable embodiment of the invention, its construction and operation, my present novel device com- L-sh'aped frame including an arm 1 having at one end thereof a cup-shaped member or cap 2 pivoted at 1 is a side elevation of my novelv the shoe Bottom, from i When the. device is then removed from the shoe, the upper 4. A bolt 9 extends through the .bracket 8," having a squared portion 10'to preventro tation, and having a threaded stem 11 extending through the arm 6. Awing'hut 12 is provided to clamp the arm 6; and bracket 8 in adjusted position, a washer 13 being'interposed betweenthe ,wing nut 12 andarmfi. ,i The bracket 8 is angled to forman exten sion 14 having a threaded boss15 at its outer end. Through this threaded boss is adapted i to be screwed a threaded stem 16 having a? handle 17 on its upper end andiva, rounded knob 18 on its lower end, said parts constituting reversible pressure applying means,

the screw threaded stem' 16 being advancedto apply pressure and retracted to relieve the pressure. This rounded end 18 is adapted to seat in a recess of depression 19 ina rivet 20,

this rivet 20-'uniting two'sections 21 which in this instance collectively form the clamping or leveling plate. This plate is devoid of prongs,- nails, or othe'r retaining elements (such as would penetrate the shoe parts,- particularl' clamping means independent of the'vplate,

and when hereinafter I refer to the plate as having a smooth-surf ace, it isto be under stood that the surface thus referred towis However, if desired, and as shownl at 22,1

' Y may knurl the surface of the plate to in}.

sure a 'gripping thereofon the edge of the upper material 24. Obviously, if desired,

operative relationship at all times. I I r The under surfaces of these sections 21 may be knur'ledor roughened as-illustrated at 22, to insure'a gripping" thereof on the edges 23 of the r-rupperrmaterials' 24.1, A

spring-25 is provided, having a bearing in each of the sections 21 and normally tending to hold said p'arts inj'separated position.

The operation of my'novel device issimple andwill be readily understood by those skilled in this art. 3 After theinsole 26 "and upper materials while said last is in :a lasting machine (not of the upper materials at the toe part.

The wipers 27 are then separated a sufiicient distance to allow the application of the V the insole) for holding the plate in p ace, the plate being held-in ac cordance with the present invention by-v devoid of attachingprongs or the :like,

24 have been assembled on the last '5,and

plate 21 to the toe of the shoe bottom, as illustrated in dotted lines in Fig. 1. The cap 2 is then fitted over the peak of the last and the arm -1 swung until the knob 18 can be seated in the depression 19 in the rivet 20. Thereupon the parts will be in the position illustrated in dotted lines in Fig. 1.

71hereafter, on:rotationof the handle 17, thestemjlfi will be advanced downwardly through the boss 15, exerting pressure on 'the 'platesections 21. This pressure will tend to move the stem 16 and hence the 'plate sections toward the heel of the shoe, the clamp ng action being ceased when the sections21 have reached'a position approximately as illustrated in full lines in Fig.1.;

Tlhis clamping and movin'g-action will not"o nly .;.com lete the pulling over action, but .will also smooth out, level and press the edges 23 of the upper materials at this too portion,

; As the sections of the plate 21 are moved toward the heel, they will expand and abut against the wipers 27, the spring 25 forcing said sections outwardly, so as to insure per- ,fect action on the edges g The device is left in clamping position for a predetermined length of time depend. ent uponthe time of setting of the cement employed, and is then removed (the stem 16 having first been retracted), at which time the cement will have set' and the upper mate-rialswill be securely held in permanent-position, ready for the application of the outsole.- i

My novel clamping plate thusholds the shoe; upper in final. lastedtposition, firmly,

smoothly-and solidl preferablybearing on jthe upper close tot eledge the insole to which it is lasted andl over. the edge of the last. l-while' fi- ::prefer to hold my clamping device by af jseparate clamp ,and

r pivoted arm, as showmlltheclamping device the stem 18 may be permanentlyiunitedto the plate to'mainta'in the stem and plate in;

:; of the s'hoeris thus completelylasted by adhesive, it being noted "in particular that the pressure applying, means-embodies no parts or elements which must penetrate, perforate, pass through or otherwise injureor require .-niodificationhof the insole voffthe shoe, au: tomatically, smoothin or' ironing' out wrinkles,-ridge's. or the lie, at the toe portion :and eliminating toe tacks, wires, or other devices." The softening effect of the cement at the toe, particularly when the toe portion of the shoe is first heated in the-usual toe stamping apparatus to soften the box and facihtatethe pulling over, givesan effectual smoothin action and result to myItoe clamp.

The admstability'of the bracket 8 on the -a'rm 6 permits {a single device to. be utilized on a wide range of shoe sizes with equal facility, and the pivoting of the cup 2 permitsfitting the. device. to, a widerange of gaging, parts such as to permit the plate to last sizes. a i: j rock relatively to the stem.

My'present deviceis simple, strong, ecof 5. Shoe'la'sting means for use in a lastnomical and efiicient,and its advantages and ing process in which he margin of the toe 5 utility will be instantly, appreciated bythose portion of the shoe upper is wiped in over 70 skilled in the artQf I believe that this dethe, insole by means of lasting wipers, said vice isnovel, andhave thereforeclaimed lasting means comprising a presser shaped the same broadly in the present application. to conform substantially to the toe portion 7 Whil'e I have necessarily described only of the insole, and reversible pressure presentinvention somewhat indetail, .1t1 applying means movable relatively to the 75 Willbe' appreciated that. IV-may vary the pressureand operative by advancing movesiz e, shape and arrangementof parts Wlth 'mentto force the presser against the wipedin reasonably wide limits without departing in margin ot the upper of the toe only, with fromthe spirit of the invention; a a U sufiicient pressure to flatten and level the It will also be appreciated that other marginal material, said presser being freely clampingmeansma be utilized on etheremovable "from the insole upon reverse bracket 8 in placeo thethreaded stem if movement of the pressure applying means. desired. j v '6. Ashoe lasting means for use in a last- Myin'vention isl further described and deing process in which the edge of the forefined in the form of claims as-follows: part of the upper is held in lasted position 8? 1.'-A"device' of the kind described, com bymeansofcementQsaid means comprising prising a substantially .'L-shaped frame, a a substantially rigid, unyielding plate adaptpivoted cup at the-end of one arm otthe ed to overlie and to engage-the folded-in frame, a bracket'on the otherarm of the portions of the upper at the toe portion frame,- a threaded stem carried by said only of the shoe, and reversible pressure bracket, a plate adaptedto bear againsta applying means independent of the plate, shoe bottom, said plate comprising two o erative by advance movement temporapivoted sections, and means to, clamp rsaid il'lly to hold said plateag'ainst the folded-in threaded stem againstsaidplate a, upper material with sufiicient force to f2, ,Adevice of the kind described, comsmooth and level said material and for a j prising a substantially L-shaped frame, a suffic'ient time topermit the retaining cement last-engaging-cupiat the. endof onearm oi substantially to set, the plate being freely the frame, abracket on the other arm of removable from the shoe bottom upon re-' the .frame, a threaded'stem carried by said verse movement of the pressure applying 35 bracket, a-plate adapted to bear against a means. 4 j shoe botto'm,'said plate comprising two rela- 7 Shoe last ngmeans for use in a lasting tively movable sections, spring means to norprocess n vvh1ch the edge of the-fore-part of mally retain-said sectionsin expanded posithe upper isheld 1n lasted position bymeans tion, and 'm'eanstoclamplsaid threaded stem of cement, said lasting means comprising a "'40 g instsaidplate. 1 v substantially rlgid'plate adjunctive to the 3. A device of the kind, described, com-- wipers of a lasting machine, said plate prising a substantially L-sh'aped f rame,; aon mi g n shapeand size substantially ivoted cup on 'oneend of one: arm of the to the toe POltlQl} of the shoe; bottom, and rame,-a sl da'bly adjustablebracket onthe be ng devoid of insole penetrating elements,

45 other'a'rmlof theframe,.a threadedstem ear -1 the, plate be ng adapted to be'disposed upon ii (1 by said bracket, :1 lateadapted toflbear the foldednn edge of the upper after yvithi t h e b tt m,' idi 1 i .v drayv al ofthe lastin WIPQISZEIOIH wip ng ing two relatively movable sections, spring P0 1 01 ndf le p essure applying mea'nslto normally retain said sections, in}, mea l' x a n m vement to n expanded posit i6n, and 'm ngm l m id force/the plate against the folded-1n mate'- 5 threaded "stem against said plate.

rial wits; pressuresugclent to" level a'nd flat- 1 v a tenpsai materia v ile holdingit in such V v. a. v :H oe as ing'm eans orilselnaastln tests; t: 3533 smarts-zeta Pg ig i a w e er Y i "with t 'b f a n ng: gm gt lasting vvig rs' did i peiiiiarientli ii:

of the ltoe portlg boigfislliigg vlsl ggezl 5531:111 tained in lasted position by means of cement,

, an nsp emoun .n I a said means comprising a plate adapted to .60; means comprising a threaded stem carlled engage and temporarily to hold in wipedby the-bracketanda plate of a shape and in condition themargin of'the-toe portion size substantially conforming to the contour, oil the shoenpper after withdrawal of the .of the toe portion oftheashoe bottoln saidlasting wipers, and reversible pressure applate being adapted to-rest upon the margin plying means movable relatively to the plate 05 of the upper, the-plate and stem'having enfor forcing the latter with substantially un- 13c yielding pressure against the wiped-in margin of the upper whereby to flatten and level themarginal material and to hold it for a sufiicient time to' permit retaining cement to set. i

9. Shoe lasting means for use with a last upon which are assembled the upper and insole of a shoe, with the margin of the upper wiped in over the insole, said lasting means comprising clamping means removably associable with the last and including a substantially rigid plate adapted to hold the wiped-in margin of the upper against the insole, and reversible pressure exerting means movable relatively to the last and operative to cause theplate to exert pressure localized upon themargin of the upper at the toe portion only of the shoe, the plate being freely removable from the shoe bot- I tom when the pressure exerted by the pres sure applying means is relieved.

10. Shoe lasting means for use with a last upon which are assembled the upper I and insole of a shoe, with the margin of the upper turned down upon the insole, said lasting means comprlsing clamping means removably associable with the last and ineluding a substantially rigid presser shaped to conform substantially to the contour of the toe portion only of the insole, and reversible pressure applying means movable relatively to the last for causing the presser to exert localized pressure upon the marginal portion of the upper at the toe of the shoe suflicient to flatten and level said mar ginal portion.

IL'Shoe lasting means for use with a shoe last-having assembled thereon a shoe upper and insole, with the margin of the upper at the toe at least folded in over the bottom surface of the insole, said lasting.

means comprising pressing and holding means engageable with the folded-in marginal toe material only of the upper to flatten and level said material at the toe portion only of the shoe, and reversible pressure applying means reacting directly between the last and said holdingmeans .for

causing said holding means to exert flatten ing pressure upon said material.-

12, Shoe bottom flattening means for use subsequent to the folding in of the edges of a shoe upper by the wipers of a bed lasting machine, said flattening means comprising last engaging means, a removable, 'substan tially'rigid and unyielding plate adapted to be placed in direct overlyingcontact with the folded-in portions of the upper material. when the bed lasting wipers are retracted,

and to exert localized pressure upon said materialto keep the latter smooth and flat .while retaining cement is setting, and

means comprising relatively movable parts interposed between the last engaging means and the plate, and operative to press the sure on the lasted-in margin to make the latter flat and level, a stem projecting upwardly from said device for manipulating it, and means reacting between the last engaging means and the stem for holding said pressure applying device in contact with the lasted-in mar in of the upper.

14. Means for c amping the margin of an.

end portion of an upper in lasted position upon an insole, comprising a clamping device portable with the shoe and having opposite side portions hingedtogether for relative adjustment laterally of the shoe.

.15. A pressure applying device useful in bed-lasting shoes, said device comprising a substantially unyielding presser member conforming substantially to the contour of a portion at least of the forward part of the.

insole, said member being devoid of insole penetrating elements and having a substan tially smooth under surface adapted to be placed in direct overlying contact with the wiped-in mar inal portion of the upper material at the lorepart of the shoe after the bed-lasting wipers havebeen retracted out vof engagement with the wiped-in material,

and reversible pressure applying means, de-

void of insole penetrating elements opera-r tlve to transmlt pressure to said presser member while the latter is in contact with the wiped-in material at the forepart of the shoe,-thereby to smooth and flatten said material and to hold it while retaining cement is setting, said presser member being freely removable from the shoe when the pressure isrelieved. r

16. A pressure applying device, useful in bedlasting shoes, for transmitting flattening pressure to. the marginal material of the shoe upper after the latter has been wiped-in over the insole by'the bed-lasting wipers, said device comprising a pair of curved elongate substantially rigid members independent of the. lasting wipers and hinged together adj acent toone end, thereby permitting their free ends to be se arated more or less, said members having ower surfaces for contact with the wiped-1n upper material, and ressure applying means for pressing sai device 'forcibly' againstthe wiped-in marginal upper material.

17 A pressure applyingv device for use in cement-lasting shoes in a bed-lasting maof an insole, each of said members being of a width at least sufficient to cover substantially the entire width of the marginal wiped-in portion of the upper with which said member contacts, and means hinging said members together for relative adjustment \vidthwise of the insole, said members having under surfaces adapted to rest upon and to flatten the wiped-in marginal material.

JACOB S. KAMBORIAN.

Patent No. 1,920,083;

JACOB S. KAMBORIAN.

July 25, 1933.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows:

and that the said Letters Patent should be 5, for "pressure" read "presser";

Page 3, line 76, claim read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 22nd day of August,

h (Seal) M. J, Moore.

Acting Commissioner oi Patents.

Ian 

